What does Psalm 139:17 mean?
Understanding that God is all-knowing causes David to reflect on God's intimate understanding. He treasures the fact that God thinks about him. He considers those thoughts highly valuable, weighty, and innumerable. Likewise, David wanted to know and honor God's other thoughts, including His will (Psalm 25:4–5).It is inconceivable to the human mind that our Creator would think so often and deeply about each of His children, but it is true. We are constantly on His mind. He has plans for us (Proverbs 3:5–6; Ephesians 2:10; Romans 8:28–30), and He cares for us (1 Peter 5:7). He created and controls the universe, but He condescends to think about us. We may fall sick or face a job loss or a financial crisis, but God's thoughts are upon us to carry us through the harrowing situation. If we want to learn what God's thoughts are for us, we can read His Word. There we will discover His love for us, what He has promised to do for us, and what He wants us to do for Him.